Kanye West and Paul McCartney team up on lullaby

The soft ballad, which West said was inspired by his daughter, features the vocals of the world-famous rapper and former Beatle McCartney on the organ.

The lullaby-like collaboration has been in the works since early 2014, when the two met in a bungalow in Los Angeles, according to a statement from West’s label Def Jam recordings.

“The process that would result in ‘Only One’ began with a simple brainstorming session between the two, with McCartney improvising on the keyboards and Kanye vocally sketching and shaping ideas in a stream-of-consciousness riff,” it said.

The song was inspired by West’s daughter North, who was sitting in his lap when he sang to her, “Hello my only one.”